Fidelity of the scheme of continunous variables quantum teleportation via minimum-correlation mixed quantum states

作者：Xia Yun Jie^*; Wang Guang Hui; Du Shao Jiang

来源：Acta Physica Sinica, 2007, 56(8): 4331-4336.

• quantum teleportation
• two-mode minimum-correlation states
• fidelity

Based on the proposal of Braunstein and Kimble, we studied the continuous variables quantum teleportation via minimum-correlation mixed state. The results show that the mixed entangled, state as a generalized type of Einstein-Podolsky-Rosen entangled states is a good quantum channel. As an example, we analyzed in detail teleporting a coherent state by means of this channel. When the parameters of minimum-correlation mixed state are chosen properly, the fidelity will almost reach to unity. The minimum-correlation mixed state as a quantum channel is better than the two-mode squeezed vacuum state.

• 出版日期2007-8
• 单位曲阜师范大学; 集宁师范学院